If the value of voltage on the secondary side of transformer is Vm(t)=Vmsin(ωt), then the value of v0 is equal to
A
0.5Vm
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B
0.5Vm
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C
−Vm
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D
Vm
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Solution
The correct option is C−Vm The circuit can be redrawn as,
The circuit represents a voltage doubler circuit, if the voltage was taken by adding voltages of both the capacitors, but to calculate V0 we have to find the voltage stored on a single capacitor. Thus, comparing from the above figure, V0=−Vm